Join Rex, Trixie, Bronto and their prehistoric friends on a journey through the Equal Sign Kingdom,
the One-Step Valley, Two-Step Canyon, Function Machine Factory, and the Coordinate Grid Volcano!
⏱️ Choose your adventure time
When time runs out, the book closes automatically and scores only the questions you answered.
🦕 Dino Kingdom
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🦖
Unit 1: The Equal Sign Kingdom
What Is an Equation? (Balance & Equality)
An equation is like a seesaw — both sides must always balance perfectly!
📘 Worked Example
3 + [ ? ] = 7
The LEFT side has 3. The RIGHT side must also equal 7.
Ask: 3 plus what number makes 7?
7 − 3 = 4, so the missing number is 4.
Check it: 3 + 4 = 7. Both sides balance! ⚖️
✅ [ ? ] = 4
Q1⭐
Think of the equal sign (=) as a seesaw -- both sides must weigh the same! Subtract 2 from 6.
Bronto the Brontosaurus has a balance scale. On one side there are 2 eggs. The other side needs eggs so BOTH sides equal 6.
2 + [ ? ] = 6
Q2⭐
Think of the equal sign (=) as a seesaw -- both sides must weigh the same! Subtract 7 from 14.
Bronto the Brontosaurus has a balance scale. On one side there are 7 eggs. The other side needs eggs so BOTH sides equal 14.
7 + [ ? ] = 14
Q3⭐
Think of the equal sign (=) as a seesaw -- both sides must weigh the same! Subtract 2 from 4.
Rex the T-Rex has a balance scale. On one side there are 2 eggs. The other side needs eggs so BOTH sides equal 4.
2 + [ ? ] = 4
Q4⭐
Think of the equal sign (=) as a seesaw -- both sides must weigh the same! Subtract 5 from 13.
Dilo the Dilophosaurus has a balance scale. On one side there are 5 eggs. The other side needs eggs so BOTH sides equal 13.
5 + [ ? ] = 13
Q5⭐⭐
Think of the equal sign (=) as a seesaw -- both sides must weigh the same! Subtract 4 from 12.
Rex the T-Rex has a balance scale. On one side there are 4 eggs. The other side needs eggs so BOTH sides equal 12.
4 + [ ? ] = 12
Q6⭐⭐
Think of the equal sign (=) as a seesaw -- both sides must weigh the same! Subtract 7 from 10.
Ptera the Pterodactyl has a balance scale. On one side there are 7 eggs. The other side needs eggs so BOTH sides equal 10.
7 + [ ? ] = 10
Q7⭐⭐
Add up the side that has no missing box first, then figure out what the other side needs to match it.
Vel the Velociraptor is checking if the balance scale is fair.
9 + 4 = [ ? ] + 3
Q8⭐⭐
Add up the side that has no missing box first, then figure out what the other side needs to match it.
Dilo the Dilophosaurus is checking if the balance scale is fair.
3 + 5 = [ ? ] + 4
Q9⭐⭐
Add up the side that has no missing box first, then figure out what the other side needs to match it.
Cera the Ceratosaurus is checking if the balance scale is fair.
9 + 4 = [ ? ] + 3
Q10⭐⭐⭐
Add up the side that has no missing box first, then figure out what the other side needs to match it.
Rex the T-Rex is checking if the balance scale is fair.
8 + 3 = [ ? ] + 2
Q11⭐⭐⭐
Add up the side that has no missing box first, then figure out what the other side needs to match it.
Bronto the Brontosaurus is checking if the balance scale is fair.
6 + 4 = [ ? ] + 3
Q12⭐⭐⭐
Add up the side that has no missing box first, then figure out what the other side needs to match it.
Trixie the Triceratops is checking if the balance scale is fair.
5 + 4 = [ ? ] + 3
Q13⭐⭐⭐
The missing number is the difference between the start amount and the end amount.
Bronto the Brontosaurus took some eggs away from the nest.
26 - [ ? ] = 19
Q14⭐⭐⭐
The missing number is the difference between the start amount and the end amount.
Trixie the Triceratops took some eggs away from the nest.
22 - [ ? ] = 17
Q15⭐⭐⭐⭐
The missing number is the difference between the start amount and the end amount.
Vel the Velociraptor took some eggs away from the nest.
13 - [ ? ] = 10
Q16⭐⭐⭐⭐
The missing number is the difference between the start amount and the end amount.
Spike the Stegosaurus took some eggs away from the nest.
14 - [ ? ] = 11
Q17⭐⭐⭐⭐
Multiplication and division are opposites! Divide to undo the multiplication.
Anky the Ankylosaurus put eggs into equal groups.
9 x [ ? ] = 45
Q18⭐⭐⭐⭐
Multiplication and division are opposites! Divide to undo the multiplication.
Ptera the Pterodactyl put eggs into equal groups.
9 x [ ? ] = 54
Q19⭐⭐⭐⭐
Multiplication and division are opposites! Divide to undo the multiplication.
Cera the Ceratosaurus put eggs into equal groups.
7 x [ ? ] = 28
Q20⭐⭐⭐⭐⭐
Multiplication and division are opposites! Divide to undo the multiplication.
Bronto the Brontosaurus put eggs into equal groups.
4 x [ ? ] = 8
🦕
Unit 2: One-Step Equation Valley
Solving for x (add, subtract, multiply, divide)
To solve for x, undo whatever was done to it using the OPPOSITE operation!
📘 Worked Example
x + 5 = 12
x is being ADDED to 5.
The opposite of addition is subtraction.
Subtract 5 from both sides: x = 12 − 5.
x = 7. Check: 7 + 5 = 12. ✅
✅ x = 7
Q1⭐
Undo addition by subtracting 8 from both sides of the equation.
Anky the Ankylosaurus found 11 bones in total. Anky the Ankylosaurus already had 8 bones before finding more.
Solve for x: x + 8 = 11
Q2⭐
Undo addition by subtracting 10 from both sides of the equation.
Dilo the Dilophosaurus found 16 bones in total. Dilo the Dilophosaurus already had 10 bones before finding more.
Solve for x: x + 10 = 16
Q3⭐
Undo addition by subtracting 12 from both sides of the equation.
Dilo the Dilophosaurus found 18 bones in total. Dilo the Dilophosaurus already had 12 bones before finding more.
Solve for x: x + 12 = 18
Q4⭐
Undo addition by subtracting 9 from both sides of the equation.
Anky the Ankylosaurus found 13 bones in total. Anky the Ankylosaurus already had 9 bones before finding more.
Solve for x: x + 9 = 13
Q5⭐⭐
Undo addition by subtracting 10 from both sides of the equation.
Dilo the Dilophosaurus found 14 bones in total. Dilo the Dilophosaurus already had 10 bones before finding more.
Solve for x: x + 10 = 14
Q6⭐⭐
Undo subtraction by adding 5 to both sides.
Dilo the Dilophosaurus had some fossils, then gave away 5 of them, leaving 10 fossils.
Solve for x: x - 5 = 10
Q7⭐⭐
Undo subtraction by adding -1 to both sides.
Dilo the Dilophosaurus had some fossils, then gave away -1 of them, leaving 7 fossils.
Solve for x: x - -1 = 7
Q8⭐⭐
Undo subtraction by adding 5 to both sides.
Vel the Velociraptor had some fossils, then gave away 5 of them, leaving 10 fossils.
Solve for x: x - 5 = 10
Q9⭐⭐
Undo subtraction by adding 3 to both sides.
Bronto the Brontosaurus had some fossils, then gave away 3 of them, leaving 18 fossils.
Solve for x: x - 3 = 18
Q10⭐⭐⭐
Undo subtraction by adding 6 to both sides.
Dilo the Dilophosaurus had some fossils, then gave away 6 of them, leaving 5 fossils.
Solve for x: x - 6 = 5
Q11⭐⭐⭐
Undo multiplication by dividing both sides by 7.
Spike the Stegosaurus arranged eggs into 7 equal nests, with x eggs in each nest, making 56 eggs in total.
Solve for x: 7x = 56
Q12⭐⭐⭐
Undo multiplication by dividing both sides by 3.
Bronto the Brontosaurus arranged eggs into 3 equal nests, with x eggs in each nest, making 15 eggs in total.
Solve for x: 3x = 15
Q13⭐⭐⭐
Undo multiplication by dividing both sides by 6.
Cera the Ceratosaurus arranged eggs into 6 equal nests, with x eggs in each nest, making 30 eggs in total.
Solve for x: 6x = 30
Q14⭐⭐⭐
Undo multiplication by dividing both sides by 2.
Rex the T-Rex arranged eggs into 2 equal nests, with x eggs in each nest, making 10 eggs in total.
Solve for x: 2x = 10
Q15⭐⭐⭐⭐
Undo multiplication by dividing both sides by 4.
Dilo the Dilophosaurus arranged eggs into 4 equal nests, with x eggs in each nest, making 20 eggs in total.
Solve for x: 4x = 20
Q16⭐⭐⭐⭐
Undo division by multiplying both sides by 6.
Cera the Ceratosaurus split x footprints evenly into 6 equal trails, with 9 footprints in each trail.
Solve for x: x / 6 = 9
Q17⭐⭐⭐⭐
Undo division by multiplying both sides by 2.
Ptera the Pterodactyl split x footprints evenly into 2 equal trails, with 3 footprints in each trail.
Solve for x: x / 2 = 3
Q18⭐⭐⭐⭐
Undo division by multiplying both sides by 5.
Anky the Ankylosaurus split x footprints evenly into 5 equal trails, with 2 footprints in each trail.
Solve for x: x / 5 = 2
Q19⭐⭐⭐⭐
Undo division by multiplying both sides by 2.
Vel the Velociraptor split x footprints evenly into 2 equal trails, with 5 footprints in each trail.
Solve for x: x / 2 = 5
Q20⭐⭐⭐⭐⭐
Undo division by multiplying both sides by 5.
Trixie the Triceratops split x footprints evenly into 5 equal trails, with 4 footprints in each trail.
Solve for x: x / 5 = 4
🦴
Unit 3: Two-Step Equation Canyon
Solving equations with two operations
Two-step equations need TWO undo moves — always undo add/subtract first, then multiply/divide!
📘 Worked Example
3x + 4 = 19
Step 1: Undo the +4 by subtracting 4 from both sides.
3x = 19 − 4 = 15
Step 2: Undo the ×3 by dividing both sides by 3.
x = 15 ÷ 3 = 5. Check: 3(5) + 4 = 19. ✅
✅ x = 5
Q1⭐
First add 11 to both sides to undo the subtraction, then divide by 5.
Bronto the Brontosaurus had 5 equal piles of bones (x bones each), then lost 11 bones, leaving 4 bones.
Solve for x: 5x - 11 = 4
Q2⭐
Subtract 8 first, then multiply by 5 to finish solving for x.
Trixie the Triceratops split x footprints into 5 equal trails, then counted 8 extra loose footprints, giving 11 in total.
Solve for x: x / 5 + 8 = 11
Q3⭐
Two-step equations: first undo addition/subtraction, then undo multiplication/division. Subtract 5 first.
Anky the Ankylosaurus collected 2 equal groups of eggs (x eggs each), then found 5 more eggs, totaling 21 eggs.
Solve for x: 2x + 5 = 21
Q4⭐
First add 14 to both sides to undo the subtraction, then divide by 5.
Dilo the Dilophosaurus had 5 equal piles of bones (x bones each), then lost 14 bones, leaving 21 bones.
Solve for x: 5x - 14 = 21
Q5⭐⭐
Subtract 10 first, then multiply by 2 to finish solving for x.
Vel the Velociraptor split x footprints into 2 equal trails, then counted 10 extra loose footprints, giving 15 in total.
Solve for x: x / 2 + 10 = 15
Q6⭐⭐
Two-step equations: first undo addition/subtraction, then undo multiplication/division. Subtract 4 first.
Trixie the Triceratops collected 2 equal groups of eggs (x eggs each), then found 4 more eggs, totaling 10 eggs.
Solve for x: 2x + 4 = 10
Q7⭐⭐
First add 14 to both sides to undo the subtraction, then divide by 6.
Cera the Ceratosaurus had 6 equal piles of bones (x bones each), then lost 14 bones, leaving 10 bones.
Solve for x: 6x - 14 = 10
Q8⭐⭐
Subtract 7 first, then multiply by 3 to finish solving for x.
Vel the Velociraptor split x footprints into 3 equal trails, then counted 7 extra loose footprints, giving 10 in total.
Solve for x: x / 3 + 7 = 10
Q9⭐⭐
Two-step equations: first undo addition/subtraction, then undo multiplication/division. Subtract 10 first.
Bronto the Brontosaurus collected 2 equal groups of eggs (x eggs each), then found 10 more eggs, totaling 28 eggs.
Solve for x: 2x + 10 = 28
Q10⭐⭐⭐
First add 15 to both sides to undo the subtraction, then divide by 4.
Dilo the Dilophosaurus had 4 equal piles of bones (x bones each), then lost 15 bones, leaving 1 bones.
Solve for x: 4x - 15 = 1
Q11⭐⭐⭐
Subtract 5 first, then multiply by 5 to finish solving for x.
Trixie the Triceratops split x footprints into 5 equal trails, then counted 5 extra loose footprints, giving 11 in total.
Solve for x: x / 5 + 5 = 11
Q12⭐⭐⭐
Two-step equations: first undo addition/subtraction, then undo multiplication/division. Subtract 2 first.
Bronto the Brontosaurus collected 3 equal groups of eggs (x eggs each), then found 2 more eggs, totaling 20 eggs.
Solve for x: 3x + 2 = 20
Q13⭐⭐⭐
First add 22 to both sides to undo the subtraction, then divide by 4.
Spike the Stegosaurus had 4 equal piles of bones (x bones each), then lost 22 bones, leaving 2 bones.
Solve for x: 4x - 22 = 2
Q14⭐⭐⭐
Subtract 2 first, then multiply by 8 to finish solving for x.
Spike the Stegosaurus split x footprints into 8 equal trails, then counted 2 extra loose footprints, giving 9 in total.
Solve for x: x / 8 + 2 = 9
Q15⭐⭐⭐⭐
Two-step equations: first undo addition/subtraction, then undo multiplication/division. Subtract 5 first.
Rex the T-Rex collected 4 equal groups of eggs (x eggs each), then found 5 more eggs, totaling 21 eggs.
Solve for x: 4x + 5 = 21
Q16⭐⭐⭐⭐
First add 3 to both sides to undo the subtraction, then divide by 8.
Dilo the Dilophosaurus had 8 equal piles of bones (x bones each), then lost 3 bones, leaving 29 bones.
Solve for x: 8x - 3 = 29
Q17⭐⭐⭐⭐
Subtract 3 first, then multiply by 4 to finish solving for x.
Vel the Velociraptor split x footprints into 4 equal trails, then counted 3 extra loose footprints, giving 5 in total.
Solve for x: x / 4 + 3 = 5
Q18⭐⭐⭐⭐
Two-step equations: first undo addition/subtraction, then undo multiplication/division. Subtract 2 first.
Vel the Velociraptor collected 5 equal groups of eggs (x eggs each), then found 2 more eggs, totaling 27 eggs.
Solve for x: 5x + 2 = 27
Q19⭐⭐⭐⭐
First add 14 to both sides to undo the subtraction, then divide by 4.
Cera the Ceratosaurus had 4 equal piles of bones (x bones each), then lost 14 bones, leaving 6 bones.
Solve for x: 4x - 14 = 6
Q20⭐⭐⭐⭐⭐
Subtract 3 first, then multiply by 5 to finish solving for x.
Anky the Ankylosaurus split x footprints into 5 equal trails, then counted 3 extra loose footprints, giving 11 in total.
Solve for x: x / 5 + 3 = 11
🥚
Unit 4: Function Machine Factory
Input → Rule → Output
A function is a machine! You drop a number IN, the RULE changes it, and a new number comes OUT.
📘 Worked Example
Rule: ×2 +1 Input: 4
Drop 4 into the machine.
First the rule multiplies by 2: 4 × 2 = 8.
Then it adds 1: 8 + 1 = 9.
The output is 9!
✅ Output = 9
Q1⭐
Follow the rule step by step: multiply by 2.
Iggy the Iguanodon's Function Machine follows this rule: x2
If you put in x = 4, what number comes out?
Q2⭐
Follow the rule step by step: multiply by 2.
Ptera the Pterodactyl's Function Machine follows this rule: x2
If you put in x = 1, what number comes out?
Q3⭐
Follow the rule step by step: add 5.
Spike the Stegosaurus's Function Machine follows this rule: +5
If you put in x = 5, what number comes out?
Q4⭐
Follow the rule step by step: add 4.
Dilo the Dilophosaurus's Function Machine follows this rule: +4
If you put in x = 1, what number comes out?
Q5⭐⭐
Follow the rule step by step: multiply by 3.
Cera the Ceratosaurus's Function Machine follows this rule: x3
If you put in x = 1, what number comes out?
Q6⭐⭐
Follow the rule step by step: add 4.
Vel the Velociraptor's Function Machine follows this rule: +4
If you put in x = 7, what number comes out?
Q7⭐⭐
Follow the rule step by step: add 3.
Spike the Stegosaurus's Function Machine follows this rule: +3
If you put in x = 7, what number comes out?
Q8⭐⭐
Follow the rule step by step: multiply by 2, then add 1.
Vel the Velociraptor's Function Machine follows this rule: x2 +1
If you put in x = 2, what number comes out?
Q9⭐⭐
Follow the rule step by step: multiply by 3.
Bronto the Brontosaurus's Function Machine follows this rule: x3
If you put in x = 9, what number comes out?
Q10⭐⭐⭐
Follow the rule step by step: multiply by 2, then add 1.
Vel the Velociraptor's Function Machine follows this rule: x2 +1
If you put in x = 5, what number comes out?
Q11⭐⭐⭐
Try each answer choice on the first input -- does it give the matching output? Then double check with the second pair.
Anky the Ankylosaurus's Function Machine table:
Input -> Output 5 -> 3 7 -> 5
What is the rule?
Q12⭐⭐⭐
Try each answer choice on the first input -- does it give the matching output? Then double check with the second pair.
Cera the Ceratosaurus's Function Machine table:
Input -> Output 8 -> 12 4 -> 8
What is the rule?
Q13⭐⭐⭐
Try each answer choice on the first input -- does it give the matching output? Then double check with the second pair.
Bronto the Brontosaurus's Function Machine table:
Input -> Output 5 -> 10 4 -> 8
What is the rule?
Q14⭐⭐⭐
Try each answer choice on the first input -- does it give the matching output? Then double check with the second pair.
Iggy the Iguanodon's Function Machine table:
Input -> Output 8 -> 13 7 -> 12
What is the rule?
Q15⭐⭐⭐⭐
Try each answer choice on the first input -- does it give the matching output? Then double check with the second pair.
Ptera the Pterodactyl's Function Machine table:
Input -> Output 1 -> -1 2 -> 0
What is the rule?
Q16⭐⭐⭐⭐
Work backwards from the output using the opposite (inverse) operations of the rule.
Rex the T-Rex's Function Machine follows this rule: x2
The output was 4. What number went IN (x)?
Q17⭐⭐⭐⭐
Work backwards from the output using the opposite (inverse) operations of the rule.
Dilo the Dilophosaurus's Function Machine follows this rule: +4
The output was 12. What number went IN (x)?
Q18⭐⭐⭐⭐
Work backwards from the output using the opposite (inverse) operations of the rule.
Trixie the Triceratops's Function Machine follows this rule: x3 -2
The output was 22. What number went IN (x)?
Q19⭐⭐⭐⭐
Work backwards from the output using the opposite (inverse) operations of the rule.
Dilo the Dilophosaurus's Function Machine follows this rule: x3 -2
The output was 10. What number went IN (x)?
Q20⭐⭐⭐⭐⭐
Work backwards from the output using the opposite (inverse) operations of the rule.
Spike the Stegosaurus's Function Machine follows this rule: x2
The output was 10. What number went IN (x)?
🌋
Unit 5: Coordinate Grid Volcano
Graphing functions & finding rules from patterns
Every function can be drawn as points (x, y) on a grid — plot x first (sideways), then y (up)!
📘 Worked Example
Rule: y = 2x + 1 Table: 1→3, 2→5, 3→7
Every time x goes up by 1, y goes up by 2 — that's our multiplier (2).
Test x=1: 2(1)+1 = 3. ✅ Test x=2: 2(2)+1 = 5. ✅
So the rule is y = 2x + 1.
On the grid, plot points (1,3), (2,5), (3,7) — they form a straight line!
✅ y = 2x + 1
Q1⭐
Remember the order: x always comes first, then y -- like 'across the hall, then up the stairs.'
Trixie the Triceratops left a footprint at input x = 3 and output y = 4 on the coordinate grid.
Which ordered pair (x, y) shows this point?
Q2⭐
Remember the order: x always comes first, then y -- like 'across the hall, then up the stairs.'
Ptera the Pterodactyl left a footprint at input x = 2 and output y = 7 on the coordinate grid.
Which ordered pair (x, y) shows this point?
Q3⭐
Remember the order: x always comes first, then y -- like 'across the hall, then up the stairs.'
Anky the Ankylosaurus left a footprint at input x = 1 and output y = 4 on the coordinate grid.
Which ordered pair (x, y) shows this point?
Q4⭐
Remember the order: x always comes first, then y -- like 'across the hall, then up the stairs.'
Cera the Ceratosaurus left a footprint at input x = 7 and output y = 8 on the coordinate grid.
Which ordered pair (x, y) shows this point?
Q5⭐⭐
Remember the order: x always comes first, then y -- like 'across the hall, then up the stairs.'
Anky the Ankylosaurus left a footprint at input x = 7 and output y = 4 on the coordinate grid.
Which ordered pair (x, y) shows this point?
Q6⭐⭐
Remember the order: x always comes first, then y -- like 'across the hall, then up the stairs.'
Anky the Ankylosaurus left a footprint at input x = 8 and output y = 1 on the coordinate grid.
Which ordered pair (x, y) shows this point?
Q7⭐⭐
Remember the order: x always comes first, then y -- like 'across the hall, then up the stairs.'
Trixie the Triceratops left a footprint at input x = 8 and output y = 3 on the coordinate grid.
Which ordered pair (x, y) shows this point?
Q8⭐⭐
Substitute x = 3 into the rule and follow order of operations: multiply first, then add.
Bronto the Brontosaurus's Function Rule (a straight line!): y = 3x + 3
What is y when x = 3?
Q9⭐⭐
Substitute x = 4 into the rule and follow order of operations: multiply first, then add.
Spike the Stegosaurus's Function Rule (a straight line!): y = 2x + 2
What is y when x = 4?
Q10⭐⭐⭐
Substitute x = 5 into the rule and follow order of operations: multiply first, then add.
Anky the Ankylosaurus's Function Rule (a straight line!): y = 2x + 3
What is y when x = 5?
Q11⭐⭐⭐
Substitute x = 4 into the rule and follow order of operations: multiply first, then add.
Dilo the Dilophosaurus's Function Rule (a straight line!): y = 1x + 2
What is y when x = 4?
Q12⭐⭐⭐
Substitute x = 1 into the rule and follow order of operations: multiply first, then add.
Rex the T-Rex's Function Rule (a straight line!): y = 1x + 1
What is y when x = 1?
Q13⭐⭐⭐
Substitute x = 10 into the rule and follow order of operations: multiply first, then add.
Iggy the Iguanodon's Function Rule (a straight line!): y = 3x
What is y when x = 10?
Q14⭐⭐⭐
Substitute x = 10 into the rule and follow order of operations: multiply first, then add.
Vel the Velociraptor's Function Rule (a straight line!): y = 1x + 4
What is y when x = 10?
Q15⭐⭐⭐⭐
Look at how much y grows every time x grows by 1 -- that's your multiplier. Then check if a number is added.
Bronto the Brontosaurus recorded this pattern on the coordinate grid:
x -> y 5 -> 15 6 -> 18 8 -> 24
Which function rule matches this pattern?
Q16⭐⭐⭐⭐
Look at how much y grows every time x grows by 1 -- that's your multiplier. Then check if a number is added.
Vel the Velociraptor recorded this pattern on the coordinate grid:
x -> y 1 -> 5 4 -> 8 6 -> 10
Which function rule matches this pattern?
Q17⭐⭐⭐⭐
Look at how much y grows every time x grows by 1 -- that's your multiplier. Then check if a number is added.
Vel the Velociraptor recorded this pattern on the coordinate grid:
x -> y 2 -> 2 4 -> 4 5 -> 5
Which function rule matches this pattern?
Q18⭐⭐⭐⭐
Look at how much y grows every time x grows by 1 -- that's your multiplier. Then check if a number is added.
Cera the Ceratosaurus recorded this pattern on the coordinate grid:
x -> y 1 -> 5 2 -> 8 5 -> 17
Which function rule matches this pattern?
Q19⭐⭐⭐⭐
Look at how much y grows every time x grows by 1 -- that's your multiplier. Then check if a number is added.
Ptera the Pterodactyl recorded this pattern on the coordinate grid:
x -> y 4 -> 12 5 -> 14 6 -> 16
Which function rule matches this pattern?
Q20⭐⭐⭐⭐⭐
Look at how much y grows every time x grows by 1 -- that's your multiplier. Then check if a number is added.
Ptera the Pterodactyl recorded this pattern on the coordinate grid:
x -> y 5 -> 8 6 -> 9 8 -> 11
Which function rule matches this pattern?
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